Home / 433,149.22-648,714.57-421,191.46

Finding the Fourth Proportional to 433,149.22, 648,714.57 and 421,191.46

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Solution

The fourth proportional to 433,149.22, 648,714.57 and 421,191.46 is: 630,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,149.22 : 648,714.57 = 421,191.46 : x
  2. Step 2: Convert to fraction form
    433,149.22/648,714.57 = 421,191.46/x
  3. Step 3: Cross multiply
    433,149.22x = 648,714.57 × 421,191.46
  4. Step 4: Simplify right side
    433,149.22x = 273,233,036,861.57
  5. Step 5: Solve for x
    x = 273,233,036,861.57/433,149.22
  6. Step 6: Final answer
    x = 630,805.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.